Supplements rhymes with:
complements, implements, complements, elements, filaments, implements, parliament's, parliaments, argument's, arguments, armaments, complements, condiments, documents, elements, experiment's, experiments, filaments, impediments, implements, increments, instrument's, instruments, instruments', ligaments, monuments, ornaments, parliament's, parliaments, predicaments, regiments, sacraments, sediments, sentiments, temperaments, tenements, testaments, tournament's, tournaments